Power and transmission mechanism



June 1 1926. v

M. AXILROD owaR AND mmsmssron mscnamsu 3 Sheets-Sheet 1 Filed July 15, 1922 INVENTOR.

BY A

ATTORNEY.

June 1 1926. 1,586,511

' M. AXILROD POWER AND mmusmssxon macmmxsm Filed July 15, 1922 s Sheets-Sheet 2 IN VEN TOR.

ATTORNEY.

, June 1 1926.

. M. AXILROD POWER AND TRANSMISSION-MECHANISM 1 v 2? Q I Q s I Patented June 1, 1926;

UNITE ofisTATE MnYER A xILRon, or PHILADELPHIA, rnnnsrhvanifah "rowan AND 'rnansivrissron nn'cnams vr.

Application filed July 15, 1922. [Serial No. 575,367.31 t j My inventionrelatesto powerand trans mission; mechanism which is 1 particularly de- "signedand well adaptedforuse in the driving or Operation of sewing or other machlnes which are supported n pairs or con ples upon opposite sides of a table or otherlike support, andit has for itsgeneral ob-,

,ject to provide anew and novel construe} tion ofl'si'mplified, economical means for op:-

meansof power and transmission mechanism which may be described broadly as constituting a single unit.

A further object isto provide a novel construction of means for operatingthe ma-' 85v a such means ofa character such that .it'may v be applied, to and employed for theopera erating the, machines of each couple by energy device and having connection 1 with,

the connections between the power orIenergy device and the machinesmayibeadjusted with'relation to the said-device and the said machines for the purposeoflbringingicer tain parts of the connectionsinto alinement with certain parts of the said machines I A further objectof the invention is y-to provide means of thev character indicated which is simple in construction ZtIIdQCbmpact and which may. be economically. con},

structedand installed; and a still further object is to provide'afnovel construction of tion of machines already inus'e;

O her objects and iadvantages 0f the invention will be pointed out in thedetailed description thereof which follows or will be apparent from such description. v 1 In order that the inventionmay the accompanying drawings, in which I have illustrated certain 'mechamcal embodiments thereof. However; it will be understood thatthe invention is susceptible of embodlment in other forms officonstruction than those shown and that changes in the details of construction maybe made within the scope of the claims Without the said inventionp- 1;

In the drawings:. s e y c Fig. l is a top plan view ofa portion of a 'tion'may'be moreclearly shown;

Fig.,6 is'a .plan View of, a portion of the apparatus showinga modified construction of means for transmitting the machine be readily understood and its; practical advantages fully appreciated, reference may be had to departing fronr tableiwith a number of sewing machines shown thereon ;-and with a portion of :the

partTof the table which' is shown broken awayin order that atop plan View of the mechanism or means embodying my invenv j- Fig; 2gis a vertical transverse sectional view taken on'the line 2-2 of Fig. 1

1 Fig; 3 is a vertical isectionallview taken Qthrough a-portion ofthe mechanism showing a deta lof constructlon; i'

. -Fig; dis a vertical sectional view taken on the 1ine4'-j4 of Fig; 1 in a plane at right angles to thejplanes in which Fig. 2 is taken;

, "Fig. 5 is a transverse sectional view taken on the line 5 50f Fig." 4; and 1 power fromthe power device. to the orfmachines to be operated;

q Referring to .the drawings Pl designates each of a pair or coupleof legs to the upper ends of iwhich is' adjustably secured by means of clamping bolts131a, top rail 4 for fragmentary supporting atable designated as'a whole by 1 the reference numeral 5 It will be understood thattherefareaplurality of top rails arranged in spaced parallel relation withrespectto'ieach othei and-aplurality of 0011- ples or pairs of legsfor supporting such rails.

1 --1O'.'designatesthe outer shell of anelectric motorlhaving a couple' of spaced parallel wide projections 11: and 12 which extend upwardly from itsitopi side upon opposite sides; 3 of the lower web-likeportion of-"the top rail 4. These projections are clamped and secured to the top rail bymeans of binding screws or bolts 13;, The outer shell or frame Not the motor'is also provided with arelas tively lon depending projection 15 having a relative y long slot 16 therein through which a clamping 'boltkl'iextends for the purposeof securingithe same to fan arched cross bar 18 havingiadjustable connectionzat e its opposite ends byfprojections extending inwardly from the inner side of the legsl.

The connection is effected fbyn means of clamping bolts 20 which extend through holes in the outer ends of the bar 18 and slots2l in the saidprO ections." It may un-- der certain conditions: be found I necessary or desirable that thepointof connection of" the bar 18 to the p'rojectionl5. which dey e pends from the motor casing or frame shall occupy .a-jlower ;position than that indicated. In such case the position of ithefbar 18 may be changed so that it arches downwardly 111- stead of upwardly.

The opposite ends of the motor casing or frame 10 are closed by aneans=of=outwnrdly swelled flanged cover plates Which are secured to the said casing by screws or other means extending through said flanges and into said frame. The motor shaft *26 sextendsientirely through ithezsaid motor and :its opposite ends project beyond :the (outer sides of the cylindrical projections '27 upon :the covers 25. aFriction idricve plates-328 are secured to the opposite :cnds of :the shaft. These plates rotate with the :shaft 26 and are adaptedzto heengaged fiiictionally'iby the friction disks 3O :actjusta'hly mounted aipon the shafts (3'1. T-hereris 'one disk for each shaft. The hubs of these friction disks .are extended upon one side and the extended portions areipro ided with 'clampingsorewvs 32 which are adapted to he loosened and tightened, whereby the said disks may be changed from (one position to another :upon their supporting shafts and secured in :such position by tightening the :binding screws :32. The disksBOar-se-tlrineniby the friction driving plates28, therefore it'wilil .be understood that when :the :disks ace 1J1 position :uponitheir shaftszidil rto :contact with the hriction driving plates at .points *near their :cen-

ter thesaid dis'ksa-re irotated'relatively slow- 'ly. 'If .it should be desired to =cause :more

rapid rotation :of the same they-are adjusted so that they may engage the friction :drive plates at :points further removed from :the

center of rotation thereof. It is apparent that either -:of .the friction disks 30 "may be adjusted independently of the other so that the speed of operation of the machine operated itherehy may be Varied independentlly of the other. If it-he:desired to change the direction ofzrotationoif theshaftsfil this may be accomplished ibyadjiusting the -frictlO'Il d.iS1 S 30 :across the faces of the plates 31 to positions .upon opposite sides :of the axes :thereof.

illhe respective shafts 31 are supported in bushings-4O and -41 "which are of considerable length'uiith :respect to the bearings 42and &3 therefor whiclrare formed in the lowerends ofxprojectionsor armed l and :45 having connection with the pivoted =yolres 4%. These bushings 4O:are1adaptedto be ihe'ld in posi tion Within :their ibearings by means of binding screws 50.- By -loosening these screws the said bushings together with the shafts rotatably supported therein may he :adj usted with respect to the :bearings 42 and 43. Situated within the lbushings are hall hear ings 152 and 53 :upon which the said shafts arevin mediately supported. 'Moa ement of the ball hearings 52 in one direction within their bushings 4.6) is :prevented by means of shoulders 54 against .nhich the mniter rings of the said .ball bearings contact. The inner rings of the ball bearings 52 contact with shoulders upon the shafts 31.

Nuts 56 upon the ends of the shafts 31 within the ibushings 4O retain the ball bearings 52 upon the shafts 31. F or preventing irelative outwarid anovement of the ball bearings Within the bushings 40 I have provided caps '60 having screw threaded connection with the interior outer end portion of the bushings l0 and the inner edges of which contact with the outer edges of the outer rings of the ball ibearings .52. The ball hearings 53 at the opposite ends of the shaftsare held against any movement :in one direction with erespect to the shaft by aneans ozfishouldersa611thereonand are held against movement in the (opposite direction within the :bushings 41 by aneans of internal shoulders =62 upon the latter. Movement in the opposite direction of the said ball bearings 53 with respect to the ibushings 4:1 :is .prcvented by means of caps .64 having screw threaded connection with itllO interior 'of the inner endsof the said .busl'iingsIz-md the in- ;ner edges of (which caps contact with the outer rings ofthehallbearings 53. The ball bearings ;53:are held'a-gainst outward movement upon the shafts '81 .loy .IDQZIIHSDCBSRGKICS 65 secured ithereon. Lubricant holding chambers are provided fiVltlllIl the bushings 40 :and 41, :as clearly shown :in Fig. iiof the drawings.

llhe iinner ends of a'the opposite sides'of the yehes 46 previously referred to :are pivofiall-y .connect'ed shy means of :pivoted bolts 72 to the outer-ends of arms 71 wihichzare integral with and extend outwardly from the outvalidly swelled cover plates 25 of the motor 011c member 7 5 ofacone clutch is secured to each of'thesshafts 31 adj acentio-r near one end thereof. Each :of these members is held in "place by means otfla nut =7 6 having screw threaded :adj-ustahle engagement with the shaft and being adapted .to clamp the said member 175 against a shoulder upon the said shaft upon the opposite side of the said member from the said nut. The (lo-acting female member of .eaclrofztlie clutches is supported upon roller bearings 81 which surround the adjacent-end portion of the shaift 31. The outer sleeve of each setof roller bearings is driven into the relatively long .hub o f theclutch memberSO so that it becomes rigid therewith. Ball bearings '83 are situated Within the outer end portion of the hubofeac h of the clutch members 80 and are a'etained in such position by means of a cap-like member '84.- having screw threaded connection with. the inner outer end portion of the said hub. The opposite or inner edge of the outer ring of each of the ball bearings contacts with the outer end of the sleeves 81 previously referred to.

Each of theball bearings 83 extends around or rests upon the-inner end portion of aheaded (pin 86,-the, head of whiclt projects into the sleeve 81 and the inner ringofe'ach of said. ball bearings is held in position against thehead of the said pin by ine-ans of a nut 87. The outer end of each of these,

pins projects outwardly and loosely through an opening 88111 the cap '84 and is-connected by a umVersal omt connection, as indicated at 90, to the inner end of an adjustable bolt Y 9l'having connection-with the lower end of a projection '92 depending 1 from 1 a lever 93,

the inner upper'end ofwhichprojects intoa i-"ertical slot 94 inthe outerfendoffl-an arm 1 95 to whichit is co-nnectedby'meansofa pivot bolt 96 extending through a horizontal slot 97 through said farm. Thesaid: bolt 96 is adapted vto-loe clamped and held in any desired position-within the slot 97. Eachof the levers 93*is provided (with a projection extending inwardly from its-pivot upon which is secured aifriction block or member 1.00 which is adapted to engage he peripheral surface of the female member 80 of each of the clutches. Each of'the' levers93 is adapted to be operated in any known manner as by means of a rod 1 01having connection at its lower end with a footoper-v ated trealdle (not shown);

Each of r the members 80 of the'i'clutches is provi'dedwith a groove 103 for a driving band 104, preferably circular in cross section, which band also engages a pulley" 105 v upon the driving shaft of a sewingmachine 106 orother machine. The purpose of adjusting the shafts 31 axially as previously describedis to bring "the band grooves in the: clutch members 80 into alinement with the similar grooves upon the pulleys 105.

spring107, coiled around the bolt 96,

one end of which is connected to thebear ingof the lever'93 and the other to the said bolt 96, tends-to cause upward'p'ivotal movement'of the said' lever' 93 to hold the friction or brake block; 100 in engagement with the peripheral surface'of th-e adj 'alcent member 80 of theclutcl i vided for lubricatingtheparts with which theyare connectedand associated.-

For the purpose of effectingadjustments of the yokes 46ftocause movement ofthe friction disks '30 either into. engagement .or

tenddoosely through openings 117 in the said yokes and are-retained in' longitudi nally fixed position with respect thereto means o-f washers"118 upon opposite sides of thefsaid yokes and pinsll9 which extend through: the said-rods. Uponscrewing the.

saidlrod'sinwardly the friction disks 30 are clamped against the friction plates 31 so that upon'rota'tion of the latter rotation of the said friction disks 30 and the shafts3l upon whichjthey are supported is effected.

In order to limit theforce with which the friction disks 3O maybe: clamped against,

the plates 31 I have; provided' upon the 'rotata'ble a'dju'sting rods 115 sleeves 120, the inner ends of which are incontact with the outer-ends of thefcylindrical hollow projections"'1.1 6 witlr' which the rods 115 have scr-e w;tl11'eadecl connection. f The positions of these sleeves uponhthe rods 115 arecon trolled-by the positions of the nuts 121 which are retained-iii the position tofwhich they may be adjusted by means of lock nuts [Itfis apparent-that theadjusting-rods 1'15 maybe adjusted independently of eachjother andv that the -frespectivc" 't-ransmission'fmeans or" mechanism 1 between the friction tdrl've plates 28-andthe-machine to beoperated are independmtly controllable. It follows that oneonly ofthemachines'may be thrown" out of loperation, that both of them niay' be thrown out "of operation, or that both of "them may be placed inoperation as maybe Instead 'of timaajusabiefriction- Y- disks f 30 beingsituatedfupon the shafts to hem driven 'froln themotor shaft, they may be situatedupon' the motor shaft, asin the constructionfshown'in Fig. 6. In this latter con} struction-the; friction disks 130 are secured to 'the motor' shaft26, and by loosening the screws 131, maybe adjusted to "dlEBIGIItPOc sitions" upon 'said fshaft. These friction dislis are in engagement With friction plates 132 secured to the innerends of shafts 133 fromwhich transmission means, not shown,

extends to themachineto be operated: for

operating the samein Upon adjustment of the friction disks 130 tofdiiferent positions with respect to the' fricti'on' plates 132 the speed ofrotation of the latter will bevariedQ U'pon'edjustment of the disks 130 so that they Contact with theplates 132 eccentrically of but nearv their centers the speeds ofrotation 'will be greater, than when the contact is made furtheraw'ay' from the center. This 1 I is the reverse of'the action when the disks scare adjustedfuponthe shafts 31' as previ ously 1 described.

fiIt will be 'apparent'thatthe construction .and'opera'tio'n of the" transmission means or mechanisms atthe opposite sides of the motor are identical; 7 I i It will be seen that by my invention I have provided asimple, compact construction of means by which a coupleiof' machines may bedriven bymeansof friction plates upon the opposite :ends "of a motor shaft iprojectmg 'tfrom opposite sides of the tmotonrsand that the transmission mechanism imtermedh ate the said friction platesand the machine to be operated or other work to be done may be :readily connected or disconnected from :the said friction plates sons to place the apparatus either :in or out 'of' operation, as may be desired.

Having thus described :my invention, what I claim and desire to secure by LettersPatout is:

:1. ln power and transmission mechanism, the combination of ail-electric motor :having ashaft the opposite ends -of which project from the opposite-sides :thereof, which shaft hassecured thereto driving means, arms =proj'ecting from the'oppositel-sidesiof the casing of said motor, shaft supporting frames swinging ly supported from said arms, shafts supported in the said frames, which shafts (respectively are situated adjacent the opposite ends of -the motor shaft and extend substantially at right angles thereto, means carried by said shafts for engagmg theisaid driving means upon the motor sha ft, -and means for independently :adjusting the said frames inwardly and outwardly 'upon .their pivots to engage and disengage the .said last mentioned means with and from .the said driving means. v a

2. In power and transmission mechanism, the combination of an electric motor having a shaft the opposite \ends of which project from the opposite sides thereof, which shaft has-secured 'theretodriving means, arms proj ecting from 'the opposite sides of the leasing of [said motor, shaft supporting frames swingingly supported fromsaid-arms, shafts supported in the said frames, which shafts respectively are situated adjacent the-opposite ends of the motorshaft and extend .substanti ally at right angles thereto, ,means carried by said shafts for engaging the said driving means upon theimotor shaft, means for independently adj usting the said frames inwardly and outwardly upon their gpivots to engage and disengage thesaid .last mentioned means with and "from the said driving means, and connections bet-ween the .said last mentioned shafts and the machines .to be operated iirom -.the said mechanism.

3. 111 power and-transmission mechanism, the combination of an electric motor having a shaft the opposite ends of which project beyond the opposite sides thereof, friction drive means secured to theusaid opposite ends, upwardly and outwardly [extending arms projecting from the opposite sides of the casing of the said motor, U-shaped frames having pivotal connection at their inner ends with-the outer upper endsofthe said arms, the said frames .being provided with downwardly extending projections terminating in :bearings, bushings mounted within said bearings, which bushings are axially adjustable, shafts mounted ovithin and'secured to said bushings and being ed justable therewith, means upon said'zshafts which rareadapted to engage with the said driving means, and independent adjustable means having connection with 'the respective U-:shaped frames for effecting independent swinging movement thereof so as to vary the positions of the said :last :mentioned shafts with :respect to thesaid driving means.

4. In power and transmission mechanism, theicombination of a pair ofsupporting legs arranged in spaced relation to :each other, a top rail secured .to the upper ends of said legs, a reversible arch-shaped barhaving adjus'table 'connection with said legs :a distance below the said top rail, an electric motor having detachable connection with the said top rail and the said arch-shaped bar, the Opposite ends of the shaftof which project beyond the opposite sides thereof, driying means :secured to the said opposite ends, bracket arms projecting outwardly and upwardly from the opposite sides of the easingzo f said motor, yoke-shaped frames having pi-votalconnections with the upper outer ends'of the said arms, which frames are :provided with depending projecting portions which terminate in hearings, axially ,adj-ustw ble bushings supported in said bearings, shafts secured within .and supported upon said .bushings, which shafts are adjustable with thela-tter, means upon the said=bushings which :are adapted to -co-operate with the said driving means, independent manually adjustable rods having connection with the said frames and with thesaid outwardly and upwardly projecting arms for effecting swinging inward androutward movements of the said frames, means for limiting the inward adjustmentio-f thesaid adjustable rods, and connections between the said last mentioned shafts and the machines to be operated thereby.

5. power and transmission mechanism, the combination of an electric motor the opposite ends of the shaft of which project outwardly from the opposite sides thereof, whichshaft :is provided with-drivingfriction plates upon its opposite ends, rarms projecting upwardly and outwardly from the opposite sides of the casing of said motor, frame members pivotallyeonnected to the upperouter ends of said arms, which frame members are provided respectively with downwardly extending proj ections terminating in bearings and with outwardly extendingslotted :arms, axially adjustable bushings within said bearings, shafts supported within said bushings and adjustable there-with, friction disks supported upon .said shafts, Which-disks are adapted to engage the said driving friction plates, manually operable means for independently ,pivotally adjusting the said frame members toward and from the said friction plates, energy devices upon the saidlast mentioned shafts, said devices each including an axially movable member, levers pivoted upon the said slotted arms and having. connection with the said movable members ofthe clutch devices, andconneet- 1 ing means between thesaid movable mem bers of the clutch devices and the machines to be operated In testimony that I claim the foregoing as my invention, I'liave hereunto signed my name this 15th dayofJ ly 1);, 1922T 1 MEYERAXILROD. 

